Hormonal imbalance: Emergency contraceptive can alter the periods due to hormonal issues. Menstrual irregularities are not uncommon and anovulatory cycle is a common cause. If you miss more than two periods it would be time to see your doctor. If you do not wish to be pregnant, use contraception all the time. You may consider implanted contraceptive or an IUD. Consult this site for more information on this topic. http://www.nichd.nih.gov/health/topics/menstruation/conditioninfo/Pages/causes.aspx Practice safe sex. Get HPV vaccine.
Answered 9/28/2015
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Common...: Emergency contraception can give you spotting or delay your period. This is quite common and doesn't mean that something is wrong. Its still a good idea to do a home pregnancy test just in case as emergency contraception isn't perfect. Best wishes!
Answered 10/11/2015
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